/**
* Finds the right IaaS interface for a given instance.
*
* @param ma the managed application
* @param instance the (root) instance associated with a IaaS
* @return a IaaS interface
* @throws IaasException if no IaaS interface was found
*/
public IaasInterface findIaasInterface(ManagedApplication ma, Instance instance)
throws IaasException {
// FIXME: Not very "plug-in-like"
IaasInterface iaasInterface;
try {
String installerName = instance.getComponent().getInstallerName();
if (!"iaas".equalsIgnoreCase(installerName))
throw new IaasException("Unsupported installer name: " + installerName);
Map<String, String> props =
IaasHelpers.loadIaasProperties(ma.getApplicationFilesDirectory(), instance);
iaasInterface = findIaasHandler(props);
if (iaasInterface == null)
throw new IaasException("No IaaS handler was found for " + instance.getName() + ".");
iaasInterface.setIaasProperties(props);
} catch (IOException e) {
throw new IaasException(e);
} catch (InvalidIaasPropertiesException e) {
throw new IaasException(e);
}
return iaasInterface;
}
